Remove mold by soaking the earpiece in white vinegar, then scrubbing gently and drying completely
Mold grows on hearing aid earpieces because they sit in a warm, moist environment inside your ear. The earmold — the plastic piece that fits in your ear canal — traps moisture and earwax, creating ideal conditions for fungal growth. You can remove light mold yourself using household vinegar and a soft brush, but heavy mold or mold inside the hearing aid's electronic components requires professional cleaning from your audiologist.
The process takes about 15 minutes of active work, plus overnight drying time. You will need white vinegar, a soft toothbrush or denture brush, a lint-free cloth, and a small cup. Do not submerge the electronic hearing aid itself — only the earmold detaches and can be safely soaked.
Key Takeaways
- Detach the earmold from the hearing aid body before cleaning; the electronic component must stay dry.
- Soak the earmold in equal parts white vinegar and water for 15 to 30 minutes to loosen mold and earwax buildup.
- Scrub the earmold gently with a soft brush, paying attention to grooves and the sound bore opening where mold hides.
- Dry the earmold completely with a lint-free cloth and leave it uncovered overnight before reattaching to prevent mold from returning.
- If mold returns within a week or covers more than the surface, contact your audiologist for professional cleaning or a replacement earmold.
Step-by-step cleaning process
Start by removing the earmold from your hearing aid. Most earmolds twist or pull straight out — check your hearing aid manual if you are unsure. Set the hearing aid body on a clean, dry surface where you will not lose it. Do not attempt to clean the hearing aid itself; water will damage the electronics and battery compartment.
Pour equal parts white vinegar and lukewarm water into a small cup — about one-quarter cup of each is enough. Place the earmold in the mixture and let it soak for 15 to 30 minutes. The vinegar breaks down both mold and the earwax that feeds it. You will see discoloration in the water as buildup loosens.
After soaking, remove the earmold and use a soft toothbrush or denture brush to scrub the entire surface, especially the grooves and the sound bore (the opening where sound travels into your ear). Use gentle circular motions — do not scrub hard enough to crack the plastic. Rinse the earmold under lukewarm running water to remove vinegar and loosened debris.
Dry the earmold thoroughly with a lint-free cloth, wiping away all visible moisture. Then place it on a clean cloth in a warm, dry location — a windowsill or shelf away from direct sunlight works well — and leave it uncovered overnight. Complete drying prevents mold from returning when ready. Once fully dry, reattach it to your hearing aid and test the fit and sound.
Why mold returns and how to prevent it
Mold returns because your ear canal is naturally moist and warm. Every time you wear your hearing aid, moisture accumulates on the earmold. If you store it in a case without drying it first, or if you wear it continuously without letting it air out, mold can regrow within days.
To prevent mold, remove your earmold each night and wipe it dry with a cloth. Store it in an open container or on a cloth — never sealed in a case while damp. If you live in a humid climate or sweat heavily, consider using a hearing aid dehumidifier or drying capsule, which you can buy from your audiologist or online. These are small containers with silica gel that absorb moisture overnight.
Check your earmold every few days for early signs of mold: discoloration, a musty smell, or a slightly sticky feel. Catching mold early means a quick vinegar soak instead of heavy buildup. If mold appears in the same spot repeatedly within a week of cleaning, the earmold material may be permanently colonized, and your audiologist can order a replacement.
When to see your audiologist instead
If mold covers more than a small spot on the earmold surface, or if it has a dark color or strong smell, professional cleaning is safer than home treatment. Your audiologist has ultrasonic cleaning equipment that reaches inside grooves and the sound bore more thoroughly than a brush can. They can also inspect the hearing aid body for mold inside the microphone or receiver ports, which you cannot clean yourself.
Do not attempt to clean mold from the hearing aid body, tubing, or any electronic component. Water inside these parts causes permanent damage. If you see mold or discoloration on the hearing aid itself, or if mold returns within a few days of your home cleaning, contact your audiologist. Many offices offer cleaning as part of routine maintenance, sometimes at no charge.
If your earmold is custom-molded to your ear, your audiologist can also assess whether the fit is trapping too much moisture. A slightly looser fit or a different earmold material may reduce mold growth long-term.
Vinegar versus other cleaning methods
White vinegar is the standard choice because it kills mold without damaging plastic earmolds and costs almost nothing. The acidity breaks down both fungal growth and earwax buildup. Rubbing alcohol (70 percent isopropyl) also works and dries faster, but it can make some earmold materials brittle over time with repeated use.
Avoid bleach, hydrogen peroxide, or commercial mold removers — these are too harsh for earmold plastic and can cause discoloration or cracking. Do not use hot water; lukewarm water is safer for the material. Some people use denture tablets, which are gentler than vinegar, but they take longer to work and are more expensive for the same result.
If your earmold is made of silicone rather than acrylic, vinegar still works, but ask your audiologist whether they recommend a specific cleaner for your material type. Most audiologists stock earmold-safe cleaning solutions if you prefer not to use vinegar.
Drying methods and timeline
After rinsing, pat the earmold dry with a lint-free cloth — microfiber cloths or the cloth that came with your hearing aid work well. Paper towels leave fibers behind, so avoid them. Wipe the inside of the sound bore and any grooves carefully to remove standing water.
Place the earmold on a clean, dry cloth in a warm room with low humidity. A windowsill, shelf, or bedside table works fine. Leave it uncovered — do not place it in a sealed case or drawer. Air circulation is essential. In a normal indoor environment, the earmold will be completely dry within 4 to 8 hours, but leaving it overnight ensures no moisture remains.
If you are in a hurry and need to reattach the earmold the same day, use a hearing aid dehumidifier for 2 to 3 hours instead of waiting overnight. These devices speed up drying significantly. Never reattach a damp earmold; mold will begin growing again within hours.
Signs that mold is returning and what to do
Watch for these early warning signs: a musty or yeasty smell when you insert the earmold, visible white or dark spots on the plastic, a slightly sticky or slimy texture, or itching in your ear canal after wearing the hearing aid. Any of these means mold is present or beginning to grow.
If you notice these signs, remove the earmold when ready and repeat the vinegar soak and brush cleaning. Do not wait — mold spreads quickly in the warm, moist environment of your ear. If the smell or itching persists after cleaning, or if you develop ear pain or discharge, contact your audiologist or doctor. Mold can occasionally cause ear infections, especially if you have sensitive skin or a compromised immune system.
If mold returns in the same location every few days despite proper drying and storage, the earmold material is likely permanently affected. Ask your audiologist about ordering a replacement earmold. A new earmold costs less than repeated professional cleanings and eliminates the problem entirely.
Frequently Asked Questions
Can I use regular soap and water instead of vinegar?
Soap and water alone do not kill mold effectively — they remove debris but leave fungal spores behind. Vinegar's acidity is what stops mold growth. You can rinse with soap and water after the vinegar soak to remove the smell, but the vinegar step is necessary for actual mold removal.
Is it safe to wear the earmold if it still smells like vinegar?
Yes, but rinse it thoroughly under running water after soaking to remove most of the smell. A faint vinegar smell will fade once the earmold dries completely. If the smell bothers you, soak it in plain water for a few minutes after the vinegar soak, then dry as usual.
What if mold is inside the hearing aid tubing?
Tubing that connects the earmold to the hearing aid body can trap mold inside where you cannot see it. If you notice mold on the earmold but the tubing looks clear, ask your audiologist to inspect and clean the tubing during your next visit. Some tubing can be soaked, but this depends on the hearing aid model — do not attempt it without guidance.
How often should I clean my earmold to prevent mold?
A quick wipe with a dry cloth each night is enough for prevention. A full vinegar soak is only necessary if you see or smell mold. If mold appears regularly, increase to a weekly vinegar soak even without visible growth, and use a dehumidifier nightly.
Can mold on my hearing aid cause an ear infection?
Mold itself rarely causes infection in healthy ears, but it can irritate sensitive skin and create conditions where bacteria grow. If you develop itching, redness, discharge, or pain in your ear canal, stop wearing the hearing aid and see a doctor. Do not assume the mold is the cause — other conditions can produce the same symptoms.